SafeSet 455 Series

Technical Specifications:

• Standard Power Automatic Minimum Vertical Chain Force: 6300 lbs nominal (5200 lbs min, 7700 lbs max)
• Low Power Automatic Minimum Vertical Chain Force: 4850 lbs nominal (4200 lbs min, 5800 lbs max)
• Output Force Control in Automatic Mode: Current sensing circuit activation point pre-set at the factory to either the standard or low power setting.
• Diameter of Wheel used with Standard Power Models: 22”
• Diameter of Wheel used with Low Power Models: 16”
• Both Standard and Low Power versions rated at 105 lbf applied tangential to the wheel when used in the manual mode.
• Chain Take Up Rate in Automatic Mode: 1.5 ft/minute (~ 18”/minute) (no load)
• Chain Take Up Rate in Manual Mode: 13 turns/ft
• Chain Take Up Range: Unlimited
• Operating Voltage Range: 45 to 87 VDC operating. Tolerates continuous exposure up to 138 VDC.
• Average Run Current: 2 Amps @ 74VDC
• Nominal Idle Current: .04 Amps @ 74 VDC
• Full Load Current (Standard Power version): 8 Amps @ 74 VDC
• Maximum Inrush Current: 20 Amps @ 74VDC for <100 milliseconds
• Operating Temperature Range: -40 to +158 deg. F. (-40 to +70 deg C.)
• Weight: 165 lbs
• Transient Protection: +/- 600 VDC FWHM for 5 milliseconds
• Brake Chain: Standard ½” locomotive hand brake chain supplied with the brake.
• Chain Angularity Limits: 5 degrees side to side, 3 degrees front to back